MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18d31c7a027f8dd95e8e75bc9b2dfd25a79d7311ae55977ab8cb55b86d5dd7bf. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

Mirai

Vendor detections: 7

Intelligence 7 IOCs YARA 3 File information Comments

SHA256 hash:	18d31c7a027f8dd95e8e75bc9b2dfd25a79d7311ae55977ab8cb55b86d5dd7bf
SHA3-384 hash:	9f36cc4b84d36e631b7888ffc09cf4e92ff52f025545310d6e61028e657b8575484bd9b14b5dd16a9dc49385d94ec708
SHA1 hash:	3e1a445080df87e7e64b1408f6985c63be6525d6
MD5 hash:	e0ce31f42872f97cba1b79f41b7b96d4
humanhash:	mars-lemon-foxtrot-single
File name:	putita.x86
Download:	download sample
Signature	Mirai Create hunting rule
File size:	153'208 bytes
First seen:	2026-08-25 21:57:21 UTC
Last seen:	Never
File type:	elf
MIME type:	application/x-sharedlib
ssdeep	3072:AHhM/cRFEMb6mSls6LF1jSGoKNJoLNq7zavITND8NfLLjBm72:ABMkRLb6vNLF1jtxSUWINkfX1m72
TLSH	T185E36C8CFA0BD1F0F5D34073512B933FA3B689291136F566FF9A6B22DC32602545926E
TrID	50.1% (.) ELF Executable and Linkable format (Linux) (4022/12) 49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika	elf
Reporter	abuse_ch
Tags:	elf mirai upx-dec

abuse_ch

UPX decompressed file, sourced from SHA256 1f94437d559fb268a5a784f04fc95485c090e2662788aa3c61595084b13b505f

UPX unpacked

This file is the unpacked version of a file that has been packed with UPX. Below is furhter information about the parent (compressed) file.

File size (compressed) :	72'208 bytes
File size (de-compressed) :	153'208 bytes
Format:	linux/i386
Packed file:	1f94437d559fb268a5a784f04fc95485c090e2662788aa3c61595084b13b505f

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Linux.Mirai.10742.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Sets a written file as executable

Runs as daemon

Creates or modifies symbolic links

Changes the time when the file was created, accessed, or modified

Opens a port

Connection attempt

Launching a process

Changes access rights for a written file

Writes files to system directory

Substitutes an application name

Creates or modifies files in /cron to set up autorun

Creates or modifies files in /init.d to set up autorun

Creates or modifies files to set up autorun

Creates or modifies symbolic links in /init.d to set up autorun

Deleting of the original file

Verdict:

Unknown

Threat level:

0/10

Confidence:

100%

Tags:

gcc masquerade rust

Link:

https://www.filescan.io/uploads/6a8e0ff515a86fc45cd69641/reports/fb48ad1b-a2f0-4f51-b773-01b21ed7efc3/overview

Verdict:

Malicious

Uses P2P?:

false

Uses anti-vm?:

false

Architecture:

x86

Packer:

UPX

Botnet:

unknown

Number of open files:

Number of processes launched:

Processes remaning?

true

Remote TCP ports scanned:

not identified

Full report:

https://elfdigest.com/brief/18d31c7a027f8dd95e8e75bc9b2dfd25a79d7311ae55977ab8cb55b86d5dd7bf

Behaviour

Persistence

Process Renaming

Botnet C2s

TCP botnet C2(s):

not identified

UDP botnet C2(s):

not identified

Status:

terminated

Link:

https://sandbox.kunai.rocks/analysis/6afa47fe-6672-478c-a215-15dcf1f226c0

Behavior Graph:

Download SVG

Gathering data

Score:

99%

Verdict:

Malware

File Type:

ELF

Link:

https://malprob.io/report/18d31c7a027f8dd95e8e75bc9b2dfd25a79d7311ae55977ab8cb55b86d5dd7bf

Detection:

mirai

Link:

https://mwdb.cert.pl/sample/18d31c7a027f8dd95e8e75bc9b2dfd25a79d7311ae55977ab8cb55b86d5dd7bf/

Threat name:

Linux.Worm.Mirai

Status:

Malicious

First seen:

2026-08-25 21:58:50 UTC

File Type:

ELF32 Little (SO)

AV detection:

5 of 36 (13.89%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ddjry6qcp6g5sxuoow6jwlp5ewtz24yrvzkzo6vyznk3q3k5267q._file

Result

Malware family:

n/a

Score:

7/10

Tags:

defense_evasion execution linux persistence privilege_escalation

Link:

https://tria.ge/reports/260825-1vkvmaeq3z/

Behaviour

Changes its process name

Modifies Bash startup script

Creates/modifies Cron job

Creates/modifies environment variables

Modifies init.d

Modifies rc script

Modifies systemd

Deletes itself

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/18d31c7a027f8dd95e8e75bc9b2dfd25a79d7311ae55977ab8cb55b86d5dd7bf

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	ELF_IoT_Persistence_Hunt Create hunting rule
Author:	4r4
Description:	Hunts for ELF files with persistence and download capabilities

Rule name:	ELF_Mirai Create hunting rule
Author:	NDA0E
Description:	Detects multiple Mirai variants

Rule name:	unixredflags3 Create hunting rule
Author:	Tim Brown @timb_machine
Description:	Hunts for UNIX red flags

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

elf 1f94437d559fb268a5a784f04fc95485c090e2662788aa3c61595084b13b505f

Mirai

elf 18d31c7a027f8dd95e8e75bc9b2dfd25a79d7311ae55977ab8cb55b86d5dd7bf

(this sample)

Dropped by

SHA256 1f94437d559fb268a5a784f04fc95485c090e2662788aa3c61595084b13b505f

URLhaus

https://urlhaus.abuse.ch/url/3892146/

Delivery method

Distributed via web download

Dropped by

MD5 b0ca596808a19499109405a3e671e5ec

URLhaus

https://urlhaus.abuse.ch/url/3885283/

URLhaus

https://urlhaus.abuse.ch/url/3892126/

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